How To Proceed With Troubleshooting [12/2019 - ]: Procedure

Result

Result: 

NEXT 

See step  2

1. Interview the customer and confirm the problem.

   Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2019 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  3

Standard Voltage

11 to 14 V

1. If the voltage is below 11 V, recharge or replace the auxiliary battery before proceeding to the next step.

Result

Result: 

NEXT 

See step  4

1. Check and record DTCs and freeze frame data.

   Chassis > Brake/EPB > Trouble Codes 

2. Clear the DTCs and freeze frame data.

   Chassis > Brake/EPB > Clear DTCs 

3. Recheck for DTCs.
   1. Reconfirm the DTCs based on the recorded DTCs and freeze frame data.

      Chassis > Brake/EPB > Trouble Codes 

   2. Try to reproduce the problem symptoms based on the recorded DTCs and freeze frame data, and then check if the DTCs are output again.

   Result

   Result	Proceed to
   DTCs are not output (Problem symptom occurs.)	A
   DTCs are output	B
   DTCs are not output (Problem symptom does not occur.)	C

   HINT: 

   • Refer to Diagnostic Trouble Code Chart if any DTCs are output.
   • When DTCs indicating a CAN communication system malfunction are output, first troubleshoot and repair the CAN communication system.

Result: 

B 

GO TO DIAGNOSTIC TROUBLE CODE CHART 

Refer to DIAGNOSTIC TROUBLE CODE CHART [12/2019 - 11/2023] , or refer to DIAGNOSTIC TROUBLE CODE CHART [11/2023 - ] 

Result: 

C 

USE SIMULATION METHOD TO CHECK 

Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2019 - ]

Result: 

A 

See step  5

1. Proceed to Problem Symptoms Table.

   Refer to PROBLEM SYMPTOMS TABLE [12/2019 - ] 

   HINT: 

   If fault is listed in Problem Symptoms Table, perform troubleshooting before proceeding to the next step.

   Result

   Result	Proceed to
   Fault is not listed in Problem Symptoms Table	A
   Fault is listed in Problem Symptoms Table	B

Result: 

B 

See step  8

Result: 

A 

See step  6

1. Refer to Terminals of ECU.

   Refer to TERMINALS OF ECU [12/2019 - ] 

2. Refer to Data List / Active Test.

   Refer to DATA LIST / ACTIVE TEST [12/2019 - 11/2023] , or refer to DATA LIST / ACTIVE TEST [11/2023 - ] 

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  7

Result

Result: 

NEXT 

See step  8

Result

Result: 

NEXT 

END